When a ray of light passes obliquely from one medium to another, which of the following changes?
A) direction of travel
B) speed, direction of travel, but not wavelength
C) wavelength
D) wavelength, speed, & direction of travel
E) speed
Question 2
A charged particle moving along a direction perpendicular to the plane of a loop of current-carrying wire, and which passes through the loop's center, will experience
A) no magnetic force.
B) a magnetic force perpendicular to its velocity.
C) a magnetic torque.
D) a magnetic force parallel to the loop axis.
Which wavelengths of light are most effective at photosynthesis?
Evidence that Light Travels at a Finite Speed
Chris Burden, Urban Light.
Interactions of Light and Matter
Which Medium FRIES would you eat?
Light beer has about the same amount of alcohol as regular beer